Locking means for fabric fastening devices



March 26, 1940- G. A. ULRICH. JR

LOCKING MEANS FOR FABRIC FASTENING DEVICES Filed March 29, 1938 R H m RR L .mU WA s G R, 0 ,E G

Patented Mar. 26, 1940 I PATENT OFFICE LooKiNc MEANS FOR FABRIC FASTENING DEVICE George A. Ulrich, Jr., New York, N. Y.

Application March 29,

2 Claims.

ally pointed fabric engaging leg of the pin free to perform its intended purpose without hindrance. a 7

While two embodiments of the invention are shown in the drawing accompanying this application and forming part. thereof, it is to be understood that such embodiments are merely il-' lustrative of the underlying principles of the invention so as to afiord a clear understanding intended as limiting the invention to the specific form disclosed therein.

In said drawing: Fig. 1 is a side elevation of one form of vention;

Fig. 2 is anenlarged detailed view of a portion of the invention shown in Fig. 1 partly fragmentary;

Fig. 3 is a section of Fig. 1 on the line 3-3; Fig. 4 is a section of Fig. 1 on the line 4-4; Fig. 5 is a section of Fig. l on the line 5--5; and Fig, 6 is'a modified form of the invention. Continuing now by Way of a more detailed dethe instanding slidable-leg-abutting flexible strip or looking member E has its lower end F looped around one end of the leg A which is spaced from the keeper, so as to slide freely relatively thereto. In order to limit the longitudinal movement of the member E and to guide it in a plane parallel to the plane of the pin so as to abut against the end of leg B, the member E guided in a'slot G which is conveniently formed by clearing'away of the safety pin so as to leave the conventionthereof to those skilled in the art and are not scription, a conventional safety pin has two legs for a sliding member to be described. An up 1938, Serial No. 198,621

the edges of the keeper material prior to forming the keeper D as will be readily understood. When the member E is in position shown in full lines in Figs. 1, 2, and 3 its upper end E abuts against the pointed end B of the leg B and holds. it in position within the keeper D. The member E is prevented from moving longitudinally of the pin by an indent or auxiliary locking means H formed in one of the side walls ofthe, keeper and projecting within its path. This'indent is of sufiicient depth to securely hold the upstanding member E in proper position againstfthe' pointed portion of the pin and to prevent move ment of the member E. A light pressure of the finger against the flexible member E is suificient to push it to a position where it clears the indent H. A light lateral pressure forces the member E, guided by the slot G, to the position shown in dotted lines in Fig. 2. In this position the pointed end B of the leg B is free to'move toward the leg A and can be released from its keeper or housing. 9 j

In the modification shown in Fig.16, an outside sheath J adapted-to envelop the conventional keeper iscleared away along its top surface at J to permit the sheath pivoted at K to be rotated to the position shown in dotted lines in Fig. 6. I In this position of the sheath the pointed leg of the pin can be released fromits conventional-- j keeper as will be readily understood. When the pin is to be locked, the sheath when turned to full, 7

It is claimed:

1. A safety pin comprising a movable fabric engaging leg having a pointed end, a substantially U-shaped keeper having spaced side flanges to receive and house the pointed end between them, a second leg having one end fixedly secured to the keeper, and a locking member slidably mounted within the confines of the keeper for alternate positioning beneath and away from said pointed end.

2. A safety pin comprising a movable fabric engaging leg having a pointed end, a U-shaped keeper having spaced side flanges to receive and house the pointed end between them, a second leg fixedly secured to the keeper between said side flanges, said side flanges being brought together at spaced intervals to define a slot, a lockingmember slidably mounted on said second leg within the confines of the keeper and said slot,

and an auxiliary lockingmeans to positively lock GEORGE A ULRICI-I, JR. 

